Polishing-machine



M. TATOSIAN. POLISHING MACHINE, APPLICATION -FILIEID NOV. 21, 1920.

Patented Oct. 25, 1921,.

IN V EN TOR.

3 SHEETS St EET 2.

IWARTl/V TATOSIAN Y BY g ATTORNEYS.

M. TATOSIAN.

POLISHING MACHINE.

APPLICATION FILED NOV. 27, 1920.

1,395,163. Patented Oct. 25, 1921.

3 SHEETSSHEET 3.

BY g4 a I g f )Z ATTORNEYS.

UNlTED STATES MARTIN TATOSIAN, 0F BRIDGEPORT, CONNECTICUT.

POLISHING-MACHINE.

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed November 27, 1920. Serial No. 426,697.

To all whom it may concern:

Be it known that l, MARTIN Tn'rosIAN, a citizen of Armenia, and resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Polishing-hilachines, of which the following is a specifiea tion.

This invention relates to a new and improved machine for polishing straight rods, tubing and the like, and designed to be used in connection with a commercial form of polishing wheel carried upon a lathe that rotates but has no longitudinal movement.

The object of the invention is to produce a machine adapted to move articles to be polished longitudinally across the face of the polishing wheel and provided with supporting means for the articles that will permit them to turn in their hearings in order that their entire surfaces may come into contact with the wheel to be polished.

With the above and other objects in view, the invention comprises the construction, arrangement and combination of parts now to be fully described and hereinafter specifically claimed.

In the accompanying drawing forming apart of this specification,

Figure 1 is a top plan view of the polishing machine, showing the work holder and its carriage in :normal position.

Fig. 2 is a similar view showing the work holder and carriage in the positions they occupy at the end of the polishing operation.

Fig. 3 is a detailed view of the supporting means for the articles to be polished.

*ig. 4 is a sectional view on line 4-4: in Fig. 1, and

Fig. 5 is a sectional view on line 5-5 in Fig. 2.

Referring to the drawings, a denotes a polishing wheel mounted upon a spindle b carrying a belt pulley 0 and rotatably supported in the bearings dd, but having no longitudinal movement.

The machine of the invention may be supported in proximity to the polishing wheel in any desired manner, as by means of a pedestal A. 1.2 denotes an elongated frame made up of a single casting or from structural iron, as preferred, and clamped to the pedestal as indicated generally by numeral 18. Extending forwardly from the frame and rigidly attached thereto are support arms let which carry at their outer ends a runway 15 for a purpose presently to be explained. The elongated frame is further provided with bearings 16 in which a carriage 17 is adapted to be reciprocatorily mounted, and this carriag is provided with forwardly disposed guide members 18 carrying rolls 19 at their outer ends, see Figs. 4.- and 5, said rolls being adapted to operate upon runway 15. A coil spring 20, secured at one of its ends to a support arm 1d and at its other end to a guide member 18, holds the carriage in normal position, see Fig. 1. A foot pedal 21 secured to the floor and connected to the carriage by a line 22 that passes over guide roll 10 is for the purpose of moving the carriage in its bearings and against the action of spring 20, as will be readily understood.

Guide members 18 are adapted to slidably receive parallel arms 23 of a work holder 24 that is adapted to be moved toward and from the carriage. Coil springs 25, each having one of its ends attached to a cross rod 26 extending between arms 23 and its other end secured to a pin 27 mounted in a post 28, serve to hold the work holder in its normal position. See Figs. 1 and. 2. A hand lever of the first class, denoted by 29, pivotally supported at 30 upon a fulcrum 31 extending between posts 28, pivotaily carries a link 32 the opposite end of which is pivotally attached to cross rod 26. As will be apparent, the lever 29 assumes the position in which it is shown in Figs. 1 and i when the work holder is in normal position. When it is desired to move the work holder away from the car riage and against'the polishing wheel, the lever is moved to about the position shown in- Figs. 2 and 5.

The work holder supports the work, denoted by B, in the manner indicated in Figs. 1, 2 and 3 of the drawing. A's therein shown, one end of the holder is provided with a bracket 33 having a socket 34. adapted to rotatably receive one end of the work. At the other end of the holder is a yoke 35 through which the work passes. 36 denotes an L-shaped inember'secured to the last mentioned end of th work holder, and 37 denotes an arm having a socket 38 adapted to rotatably receive the end of the work which is adjacent the yoke. 'The opposite end of this arm is adapted to rest against the short leg of tl1e Lshaped member, and intermediate its ends this arm is provided members are in engagement with the bean.

ings forthe carriage and are positioned at the extreme :of their movement towardthe.

left end of the elongated frame, and springs 25 are holding the work holder so that the parallel arms thereof are at the extreme of their movement within the guide members. By reference to Fig. 1 of the drawing it will be noted that when the carriage is in its normalposition, one end of the rod or tube to be polished, that at the right in said figure, ispositioned adjacent the polishing wheel and parallel with the face thereof. When now the wheel has been set in motion, the hand lever is thrown from the position of Figs. 1 and 4: to about that of Figs. 2 and 5 to move said right end of the work into engagement with the polishing wheel, and

while the hand lever is held in such position, the foot pedal is actuated to cause longitudinal movement of the work, from left to right in the drawing, to cause the whole length of the rod 'or tube to be brought into contact with the wheel. It will be apparent that the work will be capable of r0 tating in its bearings, said bearings constituting the sockets which rotatably receive the opposite ends ofthe rod or tube, together with the yoke.

In positioning the work in the holder one end thereof is first placed into socket 34 of bracket 33 and the other end thereof is made to rest in the yoke, arm 37 having previously been moved outwardly against the action of spring A0. The arm is then released and the end which is adjacent the yoke finds socket 38. To remove the work the operations just described are reversed.

While I have described in detail one specific way in which the machine of the invention may be constructed to perform its function, it is to be understood that such changes in the construction andarrangement of parts may be made as fall within the spirit of the invention and within the scope of the appended claims.

What I claim is V 1. A machine of the character described, comprising a rotatable polishing wheel and means for supporting work to be polished and for moving said work across the face ofsaid wheel, said means including a reciprocatory carriage, a spring for holding saidcarriage in normal position, a foot lever for causing longitudinal movement thereof carriage in normal position, afoot pedal for causing said carriage to move longitudinally against the action of said spring, a work holder adapted to move from and to-v ward said carriage, springs for holding said work holder in normal position, and a hand lever for causing said work holder to move away from said carriage to position work carried thereby against said wheel.

3. A machine of the character described, comprising. a rotatable polishing wheel and means for rotatably supporting work and for moving the same across the face of said wheel, said means including a reciprocatory carriage adapted to move in. a plane parallel with the working face. ofsaid wheel, and a work holder adapted to move from and toward said carriage, said work holder provided wih a fixed bracket having a socket, and with a spring pressed arm. having a socket, and being further provided with a yoke, whereby work may be positioned in said yoke so that its opposite ends are rotatably and removably received in said sockets.

4. A machine of the character described,

comprising a rotatable polishing wheel and means for rotatably supporting work and formoving the same across the face of said wheel, said means including a reciprocatory carriage, means for moving the same longitudinally, a work holder and means 'for moving the same at right angle to the direction of movement of said carriage, said work holder having a fixedly positioned socket and a movable socket, and being furtherprovided with yoke, said yoke adapted to receive work and said sockets adapted to re tatably and removably support said work in position to be polished.

5. In a machine of the character described, a work holder, a bracket rigidly carried therebyand provided with a socket, a yoke C. M. NEWMAN, WM. G. RooKwnLL. 

